What is FFDSHOW?

FFDSHOW is a DirectShow decoding filter for decompressing several video formats, including DivX, XviD, WMV, MPEG-1 and MPEG-2 movies. Filter also supports nowadays decoding of virtually all audio formats used in movies, including AC3, DTS, MP3 and Ogg Vorbis, and several subtitle formats. The codec also features post-processing capabilities, support for virtually all MPEG-4 video formats, support for various processor enhancements (such as SSE and MMX), etc. FFDSHOW is released as an open source software under GPL license agreement.

FFDSHOW can be configured to display subtitles, to enable or disable various built-in codecs, to grab screenshots, to enable keyboard control, and to enhance movies with increased resolution, sharpness, and many other post-processing filters. It has the ability to manipulate audio with effects like an equalizer, a Dolby decoder, reverb, Winamp DSP plugins, and more. Some of the post-processing is borrowed from the MPlayer project and AviSynth filters.

FFDSHOW uses the libavcodec library and several other free, open source software packages to decode video in most common formats, such as:

MPEG-4 Part 2 (including video encoded with Xvid, 3ivx, and all versions of DivX).
Flash Video, H.263 and VP6 (used by sites such as YouTube).H.264/AVC, WMV as well as numerous others.

FFDSHOW also decodes audio, such as:

MP3, AAC, Dolby AC3, WMA, FLAC, andVorbis formats, among others.

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